| Package | Description | 
|---|---|
| java.util | 
| Modifier and Type | Interface and Description | 
|---|---|
interface  | 
Collection<E>  | 
interface  | 
List<E>
An ordered collection (also known as a sequence). 
 | 
interface  | 
Set<E>  | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
AbstractCollection<E>  | 
class  | 
AbstractList<E>  | 
class  | 
AbstractSet<E>  | 
class  | 
ArrayList<E>  | 
class  | 
Stack<E>
The  
Stack class represents a last-in-first-out (LIFO) stack of objects. | 
class  | 
Vector<E>
The  
Vector class implements a growable array of objects. |